Universal bevel



y 1, 3 M. K. PARKHURST 1,769,711

UNIVERSAL BEVEL Filed Sept. 17, 1927 Fatented July 1, 1930 UNHTED STATES PATENT easier;

MALCOLM K. IPARKHURST, OF NEW YORK, N. Y., ASSIGNOR TO BROWN & SHARPE MFG.

Q, OF PROVIDENCE, RHODE ISLAND UNIVERSAL BEVEL Application filed September 17, 1927. Serial No. 220,112.

This invention relates to universal bevels, and the primary object thereof is to provide a bevel in which the two members are connected for universal movement so as to obtain a very extensive range of adjustments thereby to provide a corresponding range of angles.

A further object of the invention is to provide a bevel of this kind in which the connection'between the arms or members can be moved to varying positions so as to render same accessible for measurements to be taken.

In the drawings Figure 1 is a top plan view of the invention;

Figure 2 is a section on line 22 of F lgure 1, and

Figure 3 is a View similar to Figure 1 showing the arms in a ditl'erent adjusted position.

In proceeding in accordance with the present invention two arms 1 and 2 are employed, the arm 1 having one end 3 beveled to 30 degrees, while the arm 2 has its ends 4 and 5 beveled to angles of 45 and 60 degrees respec-' tively. Posts or pillars 6 and 7 are provided with studs 8 on their lower ends which latter are received in perforations provided therefor in the arms and are riveted to the latter. A toggle device composed of links 9 and 10 is provided to connect the members, the outer ends of the arms having openings through which screw studs 11 carried by the posts 6 project. Fastening nuts 12 and 13 are thread ed over the studs 11 and hold the links 9 and 10 in adjusted position. The inner ends of the links are provided with registering apertures through which a bolt 14: is passed, the latter having a nut 15 which is employed to hold the links in adjusted position.

By referring to Figure 1 it will be seenthat it it is desired to take a reading at the point indicated at A in Figure 1 such reading could not be had were the links 9 and 10 in the dotted line position of Figure 1. However, due to the pivoting of the links to the arms 1 and 2 they can be swung to the full line position of Figure 1, whereby a reading at the point A can be taken.

By referring to Figure 3, it will be seen that the toggle can be manipulated so as to bring the arms in a difierent relation. It

should be understood in this regard that the above instances of the relationship of the arms as shown in the drawings, are given as examples and not exhaustive enumeration of all possible angles or combinations which can be had by use of the presentinvention.

It will further be noted that the device is simple and positive and eliminates the presence of all slots. The toggle device is pivoted jacent the ends thereof, a reversible toggle device composed of a pair of links, means to pivotally connect one end of each link to the free ends of the respective posts, and means to pivotally connect the opposite ends of the links together, said last named means being movable to lie on opposite sides of a line drawn between the first named means which pivotally connect the links to said members and said posts being of a length to enable a clear vision of the angular relation of the members to be had beneath the toggle device.

2. Ina bevel, a pair of elongated members having beveled ends, a reversible toggle device composed of a pair of links, means to pivotally connect one end of each link to each of said members respectively adjacent the ends thereof, and means to pivotally connect' the opposite ends of the links together and to hold same in adjusted positions said last named means being movableto lie onop: poslte s1des of a line drawn between the said means which pivotally connect the links to I 'thesaid members and the members being capable or" being swung past said means which connects the links together.

In testimony whereof I have signed my name to this specification.

MALCOLM K. PARKHURST. 

